Glossary:R-Factor: Difference between revisions
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'''<span id="R-Factor">R-Factor</span>''' - the number which says at which [[Glossary:U-Factor|U-Factor]] (i.e. the measure of interval increase) the [[Forgetting_index#measured_forgetting_index|measured forgetting index]] (i.e. the measure of forgetting) is approximated to be 10%. This number is unique for different item difficulties and for different repetition categories (i.e. the measure of memory stability). R-Factors can be seen as a vertical green line on [[Analysis#Forgetting_Curves|forgetting curve graphs]] in SuperMemo. | '''<span id="R-Factor">R-Factor (retention factor)</span>''' - the number which says at which [[Glossary:U-Factor|U-Factor]] (i.e. the measure of interval increase) the [[Forgetting_index#measured_forgetting_index|measured forgetting index]] (i.e. the measure of forgetting) is approximated to be 10%. This number is unique for different item difficulties and for different repetition categories (i.e. the measure of memory stability). R-Factors can be seen as a vertical green line on [[Analysis#Forgetting_Curves|forgetting curve graphs]] in SuperMemo. | ||
Revision as of 08:37, 11 August 2011
R-Factor (retention factor) - the number which says at which U-Factor (i.e. the measure of interval increase) the measured forgetting index (i.e. the measure of forgetting) is approximated to be 10%. This number is unique for different item difficulties and for different repetition categories (i.e. the measure of memory stability). R-Factors can be seen as a vertical green line on forgetting curve graphs in SuperMemo.